Uninterruptible power supply unit



FIG. 1 is a perspective view of uninterruptible power supply unit showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view when in use with an adjacent unit.

The broken line showing of an additional unit is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for uninterruptible power supply unit, as shown and described. 